Rex Things dropped his mothers vase out the window of his forth story apartment 18.2 m above the ground. Determine it’s landing speed.

If forces acting on an object are unbalanced, which factors may result fron an unbalanced force? check all that apply

Why is metal often used for cooking pan?

Asheet of steel 1.5 mm thick has nitrogen atmospheres on both sides at 1200oc and is permitted to achieve a steady-state diffusion condition. the diffusion coefficient for nitrogen in steel at this temperature is 6 x 10- 11 m2 /s, and the diffusion flux is found to be 1.2 x 10-7 kg/m2 -s. also, it is known that the concentration of nitrogen in the steel at the high-pressure surface is 4 kg/m3 . how far into the sheet from this high-pressure side will the concentration be 2.0 kg/m3 ? assume a linear concentration profile.